A cephalometric comparison of treatment with the Twin-block and stainless steel crown Herbst appliances followed by fixed appliance therapy

American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics
Abbie T SchaeferTiziano Baccetti

Abstract

This study compared the effects of 2 treatment protocols for correcting Class II disharmony. The first phase of treatment consisted of functional jaw orthopedics with either the Twin-block or the stainless-steel crown Herbst appliance; the second phase consisted of comprehensive fixed-appliance therapy in both protocols. Each of the 2 samples comprised 28 consecutively treated Class II patients. The mean age at the start of treatment was approximately 12 years, and the mean age at the end of the treatment was approximately 14.5 years in both groups. The duration of the treatment phase with the functional appliance was approximately 13 months, and the duration of fixed-appliance therapy was approximately 15 months in both groups. The sex distribution was identical in the 2 groups. Lateral cephalograms were analyzed at the start of treatment (T1) and at the end of the overall treatment protocol (T2). Nonparametric statistics were used for comparisons of starting forms and of the T1-T2 changes between the 2 treatment groups. The stainless-steel crown Herbst appliance and the Twin-block appliance produced very similar therapeutic modifications in Class II patients, although the Twin-block group exhibited almost 2 mm greater correct...Continue Reading

Citations

Jan 10, 2013·Journal of Orofacial Orthopedics = Fortschritte Der Kieferorthopädie : Organ/official Journal Deutsche Gesellschaft Für Kieferorthopädie·Johan Willem BooijSabine Ruf
Apr 10, 2014·Dental press journal of orthodontics·Fabio de Abreu VigoritoLuís Antônio de Arruda Aidar
Jun 30, 2019·Clinical and Experimental Dental Research·Inmaculada EntrenasTeresa Cobo
Nov 15, 2013·The Cochrane Database of Systematic Reviews·Badri ThiruvenkatachariKevin D O'Brien
Mar 29, 2014·The Angle Orthodontist·Giorgio CacciatoreLorenzo Franchi
Dec 12, 2013·Progress in Orthodontics·Cesare LuziBirte Melsen
Aug 16, 2013·Journal of Pharmacy & Bioallied Sciences·Santhana Krishnan VinothRamya Nethravathy
Mar 14, 2018·The Cochrane Database of Systematic Reviews·Klaus Bsl BatistaKevin D O'Brien
Jul 19, 2021·American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics·Natalia Martins InsabraldeJosé Fernando Castanha Henriques

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